Your post was dangerous. setuid
bit allows running any application with root privilleges. That means if somebody has way to hack into your computer , they can do whatever they want , because that app has root privillege without asking for password. You can read about it herehere and here
It doesn't matter if you're a new user or not. If that was high-reputation user or even a moderator, it doesn't change the fact that it's dangerous.
Heemayl was a bit too harsh, he should have explained in the comments properly what is the danger of setuid
. It's a problem that high reputation users sometimes have - we can be quick to judge other people's actions. But the downvotes are proper, because your answer is not a good one for security reasons and because it asks for unnecessary actions.
But trust me: AskUbuntu is a very friendly community and people are more polite here than on other sites. Just get over this, learn more things, and keep posting other answers. You learn as you go—it was the same way for me. Just remember that before you post, ask yourself "Do I really know what this is doing? Is it really safe?"
Also, never argue in the comments. Would you argue with a co-worker in front of customers ? Being professional means solving problems privately and quietly , among other things ; also , remember to seek help from other users - don't try to fight with someone, we're community and supposed to solve issues together